Namespace search: Copy location does not allow to correctly paste the namespace into the search box

Zim 0.47 running under Xubuntu 10.4

Namespace search can be very helpful for searching large notebooks. Unfortunately there appears to be no easy way to copy the namesspace into the search box.

Copy location (shift+ctrl+L), when pasted into a page of the same or of a different notebook produces the exact namespace as shown in the status bar. However, when pasted into the search box the result is "name of the notebook?namespace " the 4 blanks standing for 4 non-printable characters (2 of them must be LF).
It would be very helpful to have an easy and rapid way of copying the namespace as shown in the status bar into the search box.